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8021962829 = 19940311371
BaseRepresentation
bin1110111100010010…
…10111000001001101
3202201001201221020102
413132021113001031
5112412110302304
63404002300445
7402535362506
oct73611270115
922631657212
108021962829
113447209451
12167a657725
139aac62a8a
14561583bad
1531e3d7d1e
hex1de25704d

8021962829 has 4 divisors (see below), whose sum is σ = 8062274400. Its totient is φ = 7981651260.

The previous prime is 8021962813. The next prime is 8021962841. The reversal of 8021962829 is 9282691208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8021962829 - 24 = 8021962813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8021962889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20155487 + ... + 20155884.

It is an arithmetic number, because the mean of its divisors is an integer number (2015568600).

Almost surely, 28021962829 is an apocalyptic number.

It is an amenable number.

8021962829 is a deficient number, since it is larger than the sum of its proper divisors (40311571).

8021962829 is a wasteful number, since it uses less digits than its factorization.

8021962829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40311570.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 8021962829 is about 89565.4108961713. The cubic root of 8021962829 is about 2001.8285634184.

The spelling of 8021962829 in words is "eight billion, twenty-one million, nine hundred sixty-two thousand, eight hundred twenty-nine".

Divisors: 1 199 40311371 8021962829